“We are over the moon in love with baby Beau,” the 43-year-old actress gushed to People. “He is a true blessing and his brothers and sisters were overjoyed to meet him! We are all truly grateful for our big, beautiful and healthy family.”

“Dean was saying, ‘We just got Finn out of diapers; I thought we were in the clear!” she exclaimed. “For the first time this year, they’re all in school. So it’s like, wow. We’re basically starting over.”

We are so excited to announce the birth of the newest member of the McDermott family! Please join us in welcoming Beau Dean McDermott. pic.twitter.com/xPCK25cBHV